如何使用JavaScript通过C++应用/设置文本框的文本对齐方式
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文本框可以提升我们文档和图表的表现力，对文本框不同部分应用不同的对齐方式，可以帮助突出重点。但默认的文本框对齐方式不能满足所有需求。对此，你可能需要调整每个文本框以满足目标要求。如果你没有大量的文本框需要调整，你很幸运。如果有很多文本框需要调整，我想你会遇到麻烦。别担心，Aspose.Cells 提供了相关API接口帮你实现这一点。
以下示例代码将文本对齐应用于文本框。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells Add TextBox Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
let workbook;
if (fileInput.files.length) {
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
workbook = new Workbook(new Uint8Array(arrayBuffer));
} else {
workbook = new Workbook();
}
const worksheet = workbook.worksheets.get(0);
const shapes = worksheet.shapes;
// add a TextBox
const shape = shapes.addTextBox(2, 0, 2, 0, 50, 120);
shape.text = "This is a test.";
// set alignment
shape.textHorizontalAlignment = AsposeCells.TextAlignmentType.Center;
shape.textVerticalAlignment = AsposeCells.TextAlignmentType.Center;
// Saving the modified Excel file
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'result.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Operation completed successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
你还可以用适当的HTML文本改变文本框内某些文本的对齐方式。以下示例代码将对文本框内部的部分文本应用对齐方式。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells TextBox HTML Transfer Example</title>
</head>
<body>
<h1>TextBox HTML Transfer Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, MsoDrawingType, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Load source workbook from the selected file
const sourceWb = new Workbook(new Uint8Array(arrayBuffer));
// Access the target textbox whose text is to be aligned
const sourceTextBox = sourceWb.worksheets.get(0).shapes.get(0);
// Create an object of the target workbook
const destWb = new Workbook();
// Access the first worksheet from the collection
const _sheet = destWb.worksheets.get(0);
// Create new textbox
const _textBox = _sheet.shapes.addShape(MsoDrawingType.TextBox, 1, 0, 1, 0, 200, 200);
// Use Html string from a template file textbox
_textBox.htmlText = sourceTextBox.htmlText;
// Save the workbook and provide download link
const outputData = destWb.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'Output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Text box HTML copied successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>